import java.util.HashMap;
import java.util.Map;

/**
 * @author fun.pengzh
 * @class PACKAGE_NAME.UserDao
 * @desc
 * @since 2021-09-30
 */
public class UserDAO {

    private static Map<String, String> users = new HashMap<>();

    static {
        users.put("10000", "张三");
        users.put("10001", "李四");
    }

    public String query(String uId) {
        return users.get(uId);
    }

}
